1 // Copyright 2021 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //      http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 #include <cstdint>
18 #include <string>
19 #include <string_view>
20 
21 namespace metric_blob
22 {
23 
24 struct TcommUtimeStime
25 {
26     std::string tcomm;
27     float utime;
28     float stime;
29 };
30 
31 struct BootTimesMonotonic
32 {
33     uint64_t firmwareTime = 0;
34     uint64_t loaderTime = 0;
35     uint64_t initrdTime = 0;
36     uint64_t userspaceTime = 0;
37     uint64_t finishTime = 0;
38     uint64_t powerOnSecCounterTime = 0;
39 };
40 
41 TcommUtimeStime parseTcommUtimeStimeString(std::string_view content,
42                                            long ticksPerSec);
43 std::string readFileThenGrepIntoString(std::string_view fileName,
44                                        std::string_view grepStr = "");
45 bool isNumericPath(std::string_view path, int& value);
46 TcommUtimeStime getTcommUtimeStime(int pid, long ticksPerSec);
47 std::string getCmdLine(int pid);
48 bool parseMeminfoValue(std::string_view content, std::string_view keyword,
49                        int& value);
50 bool parseProcUptime(const std::string_view content, double& uptime,
51                      double& idleProcessTime);
52 bool readMem(const uint32_t target, uint32_t& memResult);
53 bool getBootTimesMonotonic(BootTimesMonotonic& btm);
54 long getTicksPerSec();
55 char controlCharsToSpace(char c);
56 std::string trimStringRight(std::string_view s);
57 
58 } // namespace metric_blob
59